Home Categories Organic Chemistry Ttin chloride
A7655112

Ttin chloride , 99.998%metalsbasis , 7646-78-8

Synonym(s):
Stannic chloride;Stannic chloride fuming;Tin tetrachloride

CAS NO.:7646-78-8

Empirical Formula: Cl4Sn

Molecular Weight: 260.52

MDL number: MFCD00011242

EINECS: 231-588-9

Update time: 2022-07-08

PRODUCT Properties

Melting point: -33 °C (lit.)
Boiling point: 114 °C (lit.)
Density  2.226 g/mL at 25 °C (lit.)
vapor density  9 (vs air)
vapor pressure  10 mm Hg ( 10 °C)
refractive index  1.512
Flash point: 34 °F
storage temp.  Store at RT.
solubility  Miscible with alcohol, benzene, toluene, chloroform, acetone, carbon terachloride, gasoline and carbon disulfide.
form  Solution
Specific Gravity 2.226
color  Colorless
PH 0.2 (60g/l, H2O, 20℃)Hydrolysis
Water Solubility  reacts
Hydrolytic Sensitivity 8: reacts rapidly with moisture, water, protic solvents
Sensitive  Air Sensitive
Merck  14,8774
Exposure limits ACGIH: TWA 50 ppm
OSHA: TWA 25 ppm; STEL 125 ppm
NIOSH: IDLH 2300 ppm
Dielectric constant 3.2(22℃)
Stability: Stability Stable, but may decompose upon exposure to moist air or water. Incompatible with strong bases, alcohols.
LogP -1.67 at 20℃
CAS DataBase Reference 7646-78-8(CAS DataBase Reference)
NIST Chemistry Reference Tin tetrachloride(7646-78-8)
EPA Substance Registry System Stannane, tetrachloro- (7646-78-8)

Description and Uses

Tin (IV) chloride appears as white crystals with a strong pungent chlorine odour. On heating, tin (IV) chloride decomposition emits acrid fumes. At room temperature, it is colourless and releases fumes on contact with air, giving a stinging odour. Stannic chloride was used as a chemical weapon during World War I. It is also used in the glass container industry for making an external coating that toughens the glass. Stannic chloride is used in chemical reactions with fuming (90%) nitric acid for the selective nitration of activated aromatic rings in the presence of unactivated ones. Tin (IV) chloride reacts violently with water or moist air to produce corrosive hydrogen chloride. Tin (IV) chloride reacts with turpentine, alcohols, and amines, causing fire and explosion hazard. It attacks many metals, some forms of plastic, rubber, and coatings.

Tin(IV) chloride is a precursor to prepare organotin compounds such as tetralkyltin and dialkyldichlorotin(IV), which find applications as catalysts and polymer stabilizers. As a Lewis acid catalyst, it is used in Fridel-Crafts reactions for alkylation and cyclization. It is involved in the selective nitration of aromatic compounds in the presence of fuming nitric acid. Furthermore, it is used to prepare tin(IV) oxide coating by sol-gel process.

Safety

Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H314-H335-H412
Precautionary statements  P261-P271-P273-P280-P303+P361+P353-P305+P351+P338
Hazard Codes  C,T,F,N
Risk Statements  34-52/53-40-23/24/25-11-67-37-65-50/53
Safety Statements  26-45-61-7/8-36/37-24/25-23-36/37/39-16-62
RIDADR  UN 3264 8/PG 2
WGK Germany  2
RTECS  XP8750000
10-21
TSCA  Yes
HazardClass  8
PackingGroup  II
HS Code  28273990
Hazardous Substances Data 7646-78-8(Hazardous Substances Data)

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